Hi Tobias, > It often happens that one wants to debug PURE procedures but as I/O is not > permitted, this can be difficult. F2008's IMPURE ELEMENTAL helps a bit not > completely. > > Fortran 2015 adds another aid – not I/O which is intrinsically impure – but > at least ERROR STOP is now permitted. > > Attached is this belate Christmas present for Damian and the second F2015 > for GCC 5. (The first was "IMPLICIT NONE (external)".) > > Build and regtested on x86-64-gnu-linux. > OK for the trunk?
looks (almost) ok to me. Just one thing about your test cases: Shouldn't the dg-error go into error_stop_4.f90 (where you have -std=f2008ts) instead of error_stop_3.f90 (with -std=gnu)? And then: -/* Match a number or character constant after an (ALL) STOP or PAUSE statement. */ +/* Match a number or character constant after an (ERROR) STOP or PAUSE + statement. */ I don't actually understand what the "(ALL)" was supposed to mean here. There is nothing like an ALL STOP statement, right? Or was it just supposed to refer to *all kinds* of STOP statements? In any case it's good that it is corrected. Btw: It's probably not worth to introduce an option like -std=f2015 yet, but since there is an early draft document already, maybe it would make sense to start a wiki page to document which of those F15 draft features are implemented already? Thanks for the patch, Janus